But swamp coolers become less efficient as the ambient RH goes up: once air is saturated via original water + that added via evap. cooler: it no longer workee :[ NG in Miami fershure.

But where you can use them - lots less $/hr and first cost. (Though I was surprised at what a recent mobile-home replacement cooler cost, considering how utterly simple is a box with a motor and a squirrel-cage blower) Kinda like noting how near diesel fuel costs now VS gasoline -- given the much less cheaper processing. Must all be taxes. Of course too: they stink. OK - hike the price.


A.